The Chinese word "通告" is formed by combining the character "通" (tōng), which carries connotations of thoroughness, penetration, or widespread dissemination, with the character "告" (gào), meaning to tell, inform, or announce. Together, they create a compound where "通" amplifies the reach and completeness of the act of telling implied by "告", resulting in a term that denotes an official or public announcement, essentially, a notice that is circulated broadly to ensure comprehensive communication. This formation relies on the semantic synergy of the two components to convey the idea of a formal, widely distributed declaration.